Let's divide 72556087 by 81
The aim is to understand the frequency of 81 in 72556087.

Moving on to step 1:
81 goes into 7 0 times with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Fetch the next digit (2) from the dividend, attach it to 7 and continue: 72 / 81

Step 2:
If we divide 72 by 81, we get 0 and a remainder of 72.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 72, we end up with 72.
Include the next digit (5) from the dividend after 72, then repeat: 725 / 81

Advancing to step 3:
If we divide 725 by 81, we get 8 and a remainder of 77.
The next digit of our result is 8. 
Result so far: 8.0
If we subtract 648 from 725, we get 77.
Include the next digit (5) from the dividend after 77, then repeat: 775 / 81

Going ahead to step 4:
The number 81 fits into 775 9 times, leaving a remainder of 46.
Put 9 as the next digit of the answer. 
Result so far: 89.0
If we take 729 away from 775, we end up with 46.
Take the next digit (6) from the dividend and append it to 46, then repeat: 466 / 81

Step 5:
When dividing 466 by 81, we get 5 with a remainder of 61.
Record the quotient 5 as the next digit in the result. 
Result so far: 895.0
Subtracting 405 from 466 leaves us with 61.
Take the next digit (0) from the dividend and append it to 61, then repeat: 610 / 81

Step 6:
610 divided by 81 is 7 with a remainder of 43.
The number 7 becomes the next digit in our result. 
Result so far: 8957.0
Subtract 567 from 610 to get 43.
Fetch the next digit (8) from the dividend, attach it to 43 and continue: 438 / 81

Advancing to step 7:
81 can be fit into 438 5 times, resulting in a remainder of 33.
The number 5 becomes the next digit in our result. 
Result so far: 89575.0
Subtracting 405 from 438 leaves us with 33.
Fetch the next digit (7) from the dividend, attach it to 33 and continue: 337 / 81

On to step 8:
81 can be fit into 337 4 times, resulting in a remainder of 13.
Use 4 as the next digit of our solution. 
Result so far: 895754.0
If we subtract 324 from 337, we get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

On to step 9:
The number 81 fits into 130 1 times, leaving a remainder of 49.
Record the quotient 1 as the next digit in the result. 
Result so far: 895754.1
Subtract 81 from 130 to get 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Moving on to step 10:
When dividing 490 by 81, we get 6 with a remainder of 4.
Write down 6 as next digit of the result. 
Result so far: 895754.16
The remainder is 4 after subtracting 486 from 490.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 11:
81 goes into 40 0 times with a remainder of 40.
Put 0 as the next digit of the answer. 
Result so far: 895754.16
Deduct 0 from 40 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 12:
If we divide 400 by 81, we get 4 and a remainder of 76.
Put 4 as the next digit of the answer. 
Result so far: 895754.1604
If we subtract 324 from 400, we get 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Going ahead to step 13:
760 divided by 81 is 9 with a remainder of 31.
The number 9 becomes the next digit in our result. 
Result so far: 895754.16049
Deduct 729 from 760 and we're left with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Step 14:
81 can be fit into 310 3 times, resulting in a remainder of 67.
Use 3 as the next digit of our solution. 
Result so far: 895754.160493
If we take 243 away from 310, we end up with 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Advancing to step 15:
81 can be fit into 670 8 times, resulting in a remainder of 22.
Record the quotient 8 as the next digit in the result. 
Result so far: 895754.1604938
If we take 648 away from 670, we end up with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Step 16:
The number 81 fits into 220 2 times, leaving a remainder of 58.
Put 2 as the next digit of the answer. 
Result so far: 895754.16049382
Deduct 162 from 220 and we're left with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

The final result is 895754.16049382 with a remainder of 5.8e-08.